( LOCATED
ON
BYPASS
ffiAME.)
ATR
GO
·
Sf
•
41
.
811
82
.
New Solid State Time Delay
Accessories
T, U, W
Solid
State
Timers
Adjustable
in
Seconds,
Minutes
and
Hours
(Plug-ln.Style).
To select a time unit, operate the pushbuttons of the rightmost
thumbwheel switch until the desired time unit is shown in win-
dow. The time unit can be selected by pushing the plus (
+)
bot-
tom button or the minus(-) top button. The desired time
is
specified
by operating the three thumbwheel switches in the middle of the
front panel.
Setting of the timer at 000 will result
in
an infinite delay. The
min. setting for OSA-A timers is
Y,
0 of 1 second
as
shown. See
instructions.
0.1
I
0 0 1
Se~
Close
Differential
(ARSM) Relay
Adjustment
The voltage points at which the relay operates are adjustable.
When the relay pulls in, an audible click is heard, and the LED
will come on.
Setting
the
Relay:
If the relay should be set with a variable voltage supply (Variac):
l.
Turn pick-up control fully clockwise.
2.
Turn drop-out control fully counterclockwise.
3. Set Variac pick-up voltage to desired level.
4. Very
slowly
rotate pick-up adjustment counterclockwise until
relay picks up. (LED will energize).
5. Set Variac drop-out voltage to desired level.
6.
Very
slowly
rotate drop-out adjustment clockwise until relay
drops out (LED de-energizes).
Verify settings by raising voltage until relay picks up, then lower
voltage until relay drops out, making sure that relay operates at
desired voltage levels.
(,
BYPASS S!JBPANEL
CHASSIS,.,_._-,
I
3-
1
c.
BYPASS
CCNI'ROL
PANEL,
INCLUDES
PARTS
BELOW
TAG
DESCRIPTION
PART
NUMBER
BR
Brid~e
Rectifier
'PR-Sn7h
RNH
Normal
Voltage
Relay
Y260000
R1
30
ohm
PS-4056
R2
Resistor
LDS
120
ohm
PR--4n'i.
D1,2,3,41
Diodes
: PS-4812
(.;1
t;apacitor
RNH
PS-405tl
Ant
1
Resistor
RNH,
Aux.
Teso .ne.tay X<'bUUV<'
-
'
G-
,
